Dental apparatus



A. F; .PIEPER DENTAL APPARATUS Filed Sam. 20 1923 s Sheets-Sheet 1 IN V EN TOR.

May 3 1 927.

6 1,626,689 A.;F. PIEPER DENTAL APPARATUS Filed Sent. 20. 1923 5 sheets-sheet, 2

. v Y INVENTOR.

' BfwomeZ'R'e er y A. F. PIEPER DENTAL APPARATUS Filed Sept. 20, 1923 5 Sheets-Sheet 3 fl M x% a IN VEN TOR.

May 3, 1927.

A. F. PIEPER DENTAL APPARATUS Filed Sept... 20, 1923 III INVENTOR.

" ATTIORNEY I927. May A. F. PIEPER DENTAL APPARATUS 5 Shefs-Sheet 5 Filed Sept; 20, 1923 Jul Ewan.

B konisa .fiig per M -z's4TTORNEY.

Patented May 3, 1927.-

vanmronsn r. PIEBER, on noes-Insane, N'EW.YORK.

DENTAL ArrAnA'rns.

This invention relates "to dental apparatus with the su and, more particularly, to fountain cuspidor fixtures of the variety adapted to be supported on an apparatus pedestal or dental chair and comprising, for example, a cuspidor bowl, glass holder, saliva'ejector and means for supplying water to such partsand discharging it therefrom, One object of the invention to provide an'improved unitary fixture of this character which is simpleand compact in construction and arrangement and. ei licient. and economical in operation. Another object is the PFOVlSlOH'Of an apparatus of this nature comprising a .cuspidor howl construction capable of being effectively flushed with a minimum quantity of water, combined with saliva ejector .discharging thereinto in addition to the usual flushing water supply and controlled conjointly with the latter for use alternately in flushing the howl, thus economizing the water consumption. A further object is to provide such a fixture combining a glass holder-having improved water discharging means and also a splash guard located between the glass and cuspidor. Still a further object is the provision of a convenientlydetachable and accessible valve :head of improved construction for controlling the' water supply system. 7 Y e To these .and other ends the invention is sides in certain improvements and combinations of parts all as will be hereinafter more fully described, the novel features, being pointed out in'the claims at the end of specification. I y

In the drawings: I

Fig. 1 is a side elevation of a fixture embodying the present invention.

Fig.2 is a top plan view of the same with the cu'spidor bowlin section.

ig. 3 is an enlarged view similar to Fig. 1 but in central. vertical section.

Fig. i is an'elevation of a supporting arm fmaning a part of the fixture as viewed from the left in Fig. 1- with the associated parts removed therefrom.

Fig. is an enlarged top plan view of-a valve head controlling the water supply system with some of the associated parts removed. Fig. 6 a sectional view substantially on the line 6-6 in Fig. 5;

Fig. ,7 is an enlarged central-sectional eleration of one of the nozzle, extensions of the valve "head showing the connection thereof the AppIication filed September 20, 71923. Serial No.'6 63892.

pport and with the nozzle at tachment. I f l i Fig 8 is an elevation of the valve head on the side opposite "thatshown in Fig. 6 Fig. 9 isa view similarto Fig. 8 but from a more rearward angle and partly in section to show the saliva ejecting means Figs.,10 and 11 arejsimilar sectional views substantially on the line 1O' 10 in Fig. -6 but showing the'partsin different positions. Fig. 12 is a sectional view substantially on the line 12*'1 2 in Fig. 5; V

Figs. 13 and 14 are fragmentary. sectional views of parts-shownin Fig. 6, but in differ.- ent positions. V i I Fig. 15 is an enlarged central sectional view throughthe glass holder and l Fig 16 is an enlarged sectionalview o'fa discharge spout and a screen for the glass holder. v j Y 2 Similar reference numerals throughoutthe. several views indicate, the same part Thepresent' invention is in the natureof an improvement upon the apparatus disclosed in prior Letters Patent No. 1,300,868

granted to O. H. and A. F. 'Pieper April 15,, 1919, for dental cuspidor fixtures, comprising a fixture of the character indicated adapted also compactly houses the main water supply line,.as more fully appears hereafter:

The end 21'of arm 20 is in the present instance internally threaded and fitted with a portion 22 ofa union coupling having the usual complementaryportion or nut 23 for threaded engagement with a hub por tion 24 on the hollow supporting arm 25 which thus communicates, through its hub with the interiorof arm, 20. Hub 2 1 11s I 1 connected by a union coupling 26.,generally is the'bowl'bottom is formed with a peripheral- 7 upper end of the arm into which it discharges and that the cuspidor bowl is rotataloly supported on the arm and thus in effect on the arm 20 into which it also discharges through the hub of the-arm 25.

The cuspidor bowl is preferably circular in shape, having side walls 29 and a bottom which is inclined or curved:downwardly, as at 30, to a-central discharge outlet the riniof which as stated above is mounted on the arm 20. It is to be noted however that j .ly extending, longitudinallyinclined waterway or channel 31, for conducting flushingwater from the point ofsupply around the entire circumference of the bowl. As shown in Figs. 2 and 3, channel 31 is preferably elevated at one end adjacent thewater supply means andfhas at this point a depth suflicientto carry the volume of water required to flush the bowl. The channel is preferably helically inclined downwardly'in the direction of its extentv and also decreases gradually in depth and terminates as at sufficiently near its starting'point to carry the water by gravity, assisted by its velocity,

entirely areundfthe bowl. Theinclinat'ion and depth of the channel are so proportioned that a comparatively small volume of water supplied at a low velocity. is conducted 'loythe channel around substantially the enand the usual trap (not shown), and thus effectively flushing the bowlwith a minimum'quantity of water. WVater is supplied to the bowl through nozzle means at the startof the channel either from a direct nfiushin'gsupply or through the saliva ejecting means operating alternately therewith to economize the use of water, as explained h ereafterl V I The glass holder is carried on the end of arm 25 which is inclined upwardly and outwardly adjacent the periphery of the cus- 35 forming part of the arm 25.

pidor bowl. The arm is formed adjacent j,

its upper end with a horizontal table portion 33 to which is detachably secured, as hereafter described, the valve head for the water supply system. Rising from arm portion 33 is a tubularhextension 34; communicating at'its lower end with a curved waste conduit Extension 34- is internally threaded at'its upper end to receive a well portion 36 of a waste trap.

The upper end of portion 36 is flanged outwardly to form part sofa union coupling 37'for detaehablysecuring on the upper end of the well-portion 34a base ring 38 in which is cemented the glass holding bowl 39, as shown. The gasket means 40 between '7 portion and ring 38 is extended inwardly slightly beyond the inner wall of portion 36 and enlarged as at 4-1 anda discharge spent 42 having a shouldered upper end 43 is detachabl'y sea ed within and snugly em braced by theg asl-ret which thusnot only forms a seal but also detachably supports the discharge spout the lower end of which depends belowvthe liquid level in the well portion 36 of the trap. The spout is'provided with a screen (hit and with. a guard and handle portion 45 by means of which it may be removed for cleaning, The glass holding, bowl is preferably formed; with a I plurality of webs for supporting the glass in spaced. relation with thebottom, of the bowl. I V r The glass holder is supplied with water through an upwardly projectingv nozzle or goose neck overhanging the glass for filling the same and the glassholder is provided with a splash guard48 of the curved shape shown for protecting the glass against ex-- pectoration or splashingfrom the euspidor. The bottom of the guard is offsetinwardly to providea seat 49 resting on the periphery of the bowl 39 and the upper end of the .guard has adjustably secured, to its under side as by means of a clamping bolt and nut means 50, a bracket 51 formed with ring terminals52 detachably'slipped over nozzle 47 for adjustably supporting the guard in position. The latter may convenientlybe given a substantial extent circumferentially of the glass holder and curved well over. the latter at its top as shown to fully protect the glass,

The water supply system for the cuspidor bowl, glass holder and saliva ejecting means is controlled by a single valvehead compactly enclosed and detacliably mounted within a housingr' on the armf25 below the glass holder as more fully described below, and comprises preferably an integral casting shown in detail in Figsh and 12, in elusive. This casting comprises. in the present instance, aninlet or supply extensien Fig; 6 adapted for connection with a suitable source of water'nnder pressure; This connection extends upwardly into the main body of the head and has at 54 a branch passage communicating centrally Y with the lower end of aninclined chamber 55 formed centrally inthe bead body'( The end of passage 54 is provided in the ehamber with a valve seat 56 with which co- 120 operates a valve 56 h) he; later described longitudinally a valve body 59 havinginter mediate its ends a recessed portion 00. Chamber has in'its walls an annular, en-

largement or passage 61 in the plane of bore fiOand cut laterally into thesame to provide communication between the chamber and valve here as shown. Eachend olthe "bore is formed With a val ve sea-t for cooperation I with the respective end of "the valve body '59., and through one of-these seats is a passageway 63 leading throughthe head and through anozzle extension 64; having an up- Wardly projecting threaded end 65. To this connection is attached a nozzle affording a direct supply of Water for flushing the cuspi- 'd-or. The opposite end of valve bore5'8 commu-nicates with a threaded enlargement 66 Fig. 10, in which is detachably screwed a Fig. 9 leading through dhe head to saliva ejecting aneansin the latter WlllCll will now be described.

The saliva GJGOtlHg means comprises pref? era'bly asubstantiallycylindrical lateral entionis z-shou-ldere'd asgat 74 and reduced largement :71 ion "the head formed centrally with arbore having an internally threaded end 72-opening externally of the head and with which iihe supply passage -co1nmunicaiaes. Bore 72 is closed at its outer end by -a detachable plugfl 3 and its inner porconical-ly to form -.a1th-roat as shown. A plug (76 has its head .77 screwed into bore 72 against the shoulder 74, the plug having .a reduced tapered portion .7 8 extending through the throat 75 in spaced relation with the sides thereof. Plug 76 has aeentral passage 'therethrough for the supply of water'hirom chamber by the means described to the centerzo'f the throat. Coma municati-ng laterally with the throat is a passage 79 leading from :a downward lextension 80 internally threaded as at 81 for the reception :of a nipple 82 to which is attached-a rfiexrbleconductor 83 carrying the usual for any :suitable terminal for insertion in the ,patienfis "mouth for Withdrawing the saliva. Bore 75 co-lnn-iunicates With :a passage leading through an upwardly extending threaded nozzle connection 85- hav- I ing attached thereto a nozzle means discharging into the cuspidor and serving also to,,:fl-ush the latter. It is apparent that this construction affords an efficient salivaejectionmeansiin the walv-e head the ipai ts'o'f which may be conveniently-reached by ire- 'IHOV-RlOi plug 73; It is also apparent that by shifting valve :body 59 longitudinally 'against ne 01' the other o'fiitscooperating seats, either the direct Watersupply or the saliva ejecting means may be brought into operation, ythereby flushing the cuspidor bowl, 1these parts being adapted for opera of Water out off whenthe ejector-is, in opera-v tion, thereby conserving the quantity o tt' Water necessary for" flushing the cuspidor.

For the purpose of preventing the outward flow of Water through theejiec'tor connection nipple 82 has t'ormed in its inner end a valve seat 86 with which cooperates a check valve 87 which opens automatically during the useoi the ejector.

The valvebody 59 for selectively operating either the directsupplypf Water for the cuspidor or -tl1e"ejecto1,-and the valve 56* are operated by a single valve spindle 88 .rotatably and slidably supported in chamber 55. the spindle, as shown, so that longitudinal sliding movement of the latter rnovesfthis valve towardand tronrits seat for the pure posedescribed. The spindle has fixed thereon also a hub 89 carrying ayfin-ger '90"en-' gaging inthe recess 60 of'valve body 59 for shifting the latter as described by rotation of the spindle. Means'are alsoprovided for urging the latter toward one or :theother ofits extreme positions of rotation with the valve body against one or. the other of'its seats comprising a shoulder 91 -011 the -hub cooperating with .a spring pressed plunger 92 carried by a plug 93 screwed intothe head. j lhejvalve-spindle 88 is rotatably supported in the head by niea-nscomprising preferably a gland cup 94 in Whichthe spindle rotates and which has a shoulder 95 bearing onan internal shoulder 96 in chamber 55., The gland cup is held in position bynieans ofa sleeve 97 threadedlyengaged in the externally opening end of chamber 55 and bearing against the shoulder 95 of the, cup.

Sleeve 97 supportsa tubular part 98 -rotat- 1 on the-partand onsleeve 99.; Pal-W8 is t-hu-sf free to rotate but-has no longitudinal move- Valve 56 is lined on the inner end of tionindivi-duallylin alternation so that :but one 1s in use at a timeand the direct supply ment and its inner end carries a lug 100 slid-V ably engaging a longitudinal shoulder 101 on 'a sleeve 102th-readedlyengaged in the I outer end of the gland cup. Sleeve 102 bearszat' 'its'other end againsta beveled Washer 103 for compressing the packing 104 and it apparent flOlli'tlll-S construction that part 98 may be conveniently rotated when necessary :l orl'rendering the bea-ring'of the spindle thoroughly Water tight.

The outer end of we; 98 internally enlarged and threaded toreceive a threaded sleeve 105 rotatably "carried between a shoulder 106 on t liespnidleand a washer 107 secured to the outer end of the latter and the sleeve carries a fingerpiece or Wing 108 by means 'Of'WlIICll it may be continuously rotated to thereby shi it the spindle longi tudinally independently oliany rotary mo tionoithe same-for operating valve 56. Nut 107- carries a finger piece or wing 109 by meansoi which the spindle-natty" be ,rotated independently of longitudinal motion thereor for slotting-valve body59. Espindle 88 thus ailords a single (leviceliaving V t l ese parts selectivelyand individually.

onemovement in a longitudinal. direction for eontrolling l'he supply of water-toithe cuspidor nozzle and'tov the ejector simultaue ously" and havinganother or rotary movement i'or controlling the supply 01 water to The nozzle extensions 65 and 85 for dischar 'inr \vaterinto the cus i idor directl or through the ejector respectively, are each provided with nozzle tubes 110 and 111 respectively Fig." 2, curved into parallelism.

with each other and over the cuspidor side v and-united in a oint 1,12 carrying a coinmondischarge nozzle llilpositioned above the beginningol? the conducting and distributiiigavaterway in, the bowl, These nozzle tubes 110 and 111; are connected with their respective head extensions and 85 by insertion of thelower ends thereof in the hear extensions asshown in 7. A gland nut 114 containing packing 115 is provided "for making these joints water tightv These valve head extensions are also utiliiied, together with the extension for the glass hold or nozzle hereafter described for detachably seciui ing the'head toarin 25. To this end each extension-is -formed below the threaded eXtremity thereof witha shoulder 116, Fig.

7 carrying a washer 117 for engagementwit-h v theundersideoi. the horiyontal portion o'i' the arm and a nut l18 th'readedly engaged with the extension securely clamps the same and'the head to the arm. As shown nut 118 is recessed at its upper end to avoid interflerence wlthfgland nut 11 i.

The supplyof water for the glass holder nozzle 17 is conducted from the supply con 'nection 53 of the head, Fig, 12, through'a lateral passage 119 into a chamber 120 in .which it terminates witha valve seat 121.-

r. Cooperating with the latter is a valve 22 op erated by a spindle 23 threadedly engaged with the walls of the valve chamberand operated by-a fingerpiece-orknob 12 i.- Communicatingr laterally with chamber 120 is "a passagel25 leading into a vertical passage 1% extending through the head and a threaded noz /ile' extension 127 clamped to arm 125' and connected'with the' glass nozzle -17 as described above in connection with the nozzles for the cuspidor, 1

The supply connection for the valve head isconnected by a union coupling 128 with a curved' length of pipe 129 rotatably connected at its other end as by a union130 with'the outlet 131 oi'a valve 132 carried by arm 20 and connected interior-1y of the lathoused therein. 7 cated concentricallyw th the verticalaxis of charge nozzle 1135 ter with' a water supply line compactly V The valveoutlet 131 islethe cuspidor bowl and 01 arm 25 so'that the latter with the parts carried thereby may be rotated about thecuspid'orftothe most convenient position, the 'cuspidor b'ov lbeing simultaneously adj usted to positioniits wak terway as described with relation to thedis- As shown inl igs. I termed with a circuitousportion-,133 extend mp; around the valve head at one side'oi the latter to provide for its attachment' to' the arm in central relationr This circuitous arm pro-tron, and thetable portion 33,jare utillzed together with wall extension portion 1340117 the arm ai1d supporti.ng the table to form a: housing compactly enclosing; protecting and concealing the valvehea'd. A portion 135 of this housing is constructed as a detachable cover plate secured as by'means of screws 136 to the valve head, with suitable apertures for the head extensions 53and 8O andfthe valve operating spindles.

v j As apparent from the above description 1 the hxture arm 25 may be swung on the mam arm Orsupport 20to any convenientposition and the cuspidorbowl adjusted to bring its distributing waterway under the discharge nozzle. By rotating fingerpie'ce 108' spindle 88 may be shifted longitudinally to admit water for either flushing the cuspidor bowl directlyor operating the saliva ejector. By turning finger-piecev 109 in one direction the bowl may be flushed with a direct supply of the water about" the circumference of the bowl and at the same time distributingit over the bottomin a continuous film. The

drinking glass is effectively protected by the adjustable" splash guard described as obviously desirablefroma sanitary point of view. The water supply'system for the different parts is conveniently controlled by but two operating devices on a unitary head detachably carried on the fixture and these;

and the various otheradvantageous features described are embodied in a simple, compact and convenient apparatus whichfurthermore has a simplicity of outline rangement affording a pleasing ance. 1 v

ll claim as my invention:

1. In a dental cuspidorfiXtu1'e,the-com-- bination ofv a "hollow support fo i -mg and ar-' appear 3 and et farin 25 1S:

1,626,689 I I g waste conduit, a cuspidor discharging'into said support, an arm onfsai'dsupport carrying a housing, a valve head, enclosed and detachably secured in said housing, water sup ply means for the valve head, saliva ejector means controlled by the valve head andjdis charging into the cuspidoi' to flush the and discharging into the latter, water-sup ply'means for the valve head, water dis-' charge'means for the glass connected with the Valve head, saliva ejector means controlled by the valve head and discharging into the cuspido'r to fiush the same, and

water discharge means connected withrthe valve head for flushing the cuspidor.

I 3. In a; dental cuspidor fixture, the combinationof a hollow support forming' a= Waste conduit, a cuspidor discharging into said support, an arm having apivotal move- Q ;ment, on the support about the cuspidor, a

housing ons aid arm, a glass holder on the armprovided with a fill-ingnozzle, a nozzle for" flushing the, cuspidor, saliva ejecting means discharging into the cuspidor toflush the same,and asingle valve means detachablysecured in said housing for operating said flushing nozzle and ejecting m'eansin alternation with each other. 1

4. In a dental cuspidor fixture, the combination 01 a hollow" support forming a Waste conduit, acuspidor discharging into said support, a hollow arm having a pivotal' movement on the support about they ci-ispidor center and 'discl'i arging' into the support, ahousing on said arm, a valve head enclosed and detachably secured n? the housing, a glass holder above the lions ing 'onthe arm anddischarging into the latter, watersupply means for the valve 7. head, water discharge means connected with the valve head for filling the glass and flushing the cuspidor and saliva ejector .bina-tionof hollow, support donning [a r p 'bination with alfcu'sp1dor bowl having a same.

means controlled by the valve head and discharging into the cuspid'or to fiushthe 5. In a dental cuspidor fixture, the com waste conduit, a cusp-idor discharging into said support, a hollow arm disch-arging into and projecting upwardly and outwardly from the support and formed adjacent the periphery of the cuspidor with a laterally circuitous portion and housing, a compact,

un-itaryval've head detachablysecured and enclosed in said circuitous portion and housing, a glass holder onanddischa'rging into said arm above said portion thereot, water supply means :ror said head, outlet eon- V nections withthe'valve head for filling the 1 glass and flushing the cuspidor, and asaliva ejector controlled by said valve head and discharging into the cuspidor to flush the I same,

6; In a dental cuspid'or' fixture,;' the bination of hollow support forming a waste conduit, a 'cuspidor.discharging into said; support, a hollow arm discharging into and projecting upwardly and outwardly from the support adj acentt-he periphery of the cuspidor, a valve head on the arm adjacent the latter, said arm being curved laterally aboutv said head and formed with ahousing: including a detachable cover for enclosing said head, a glass holder on. and d scharg ng nto the arm above said curved portion thereof, watersupply means for said head, outlet connections with said head for the glassandfor flushing said bowl, and

a saliva ejector.controlledby said head. 1 v 'E. In aj dental cuspidor fiXtu-re,'the com} bination withi a cuspi'dor, of means for 1 f flushing thesame, a saliva ejector and a single control device 'lorl operating said means, and; ejector in alternation. j

8. In adental cuspidor fixture, the com bination with a cuspidor, of 'mcans for flushing thesame, a saliva ejector arranged tov discharge into and flush the cuspidor,

and a single control device for operating said mcans and ejector in alternation. V

water supply means connected with said nozzle, saliva ejecting means coiinectedjvitli r00- 9; In a dental. 'cuspidor fixture the com said nozzle, and a" control device common to said means, for selectively causing the operation of either of said means and dis-i continuing the operation of the other.

10. In a fountain cuspidor fixture, the combination with a. cusp idor bowl having awaste outlet and a waiter-way extending around the bowl and inclined in the direction of extent for producing a spiralflow of water over the bowl andinto said outlet, water supply means discharging into said waterway, saliva ejecting means, and a control device common to said means for selectively causing. the f operation or either of said means and discontinuing the operation of the other;

no i

11 In a dental cuspidor fixture, the com peripherally extending waterway inclined downwardly in the direction of extent and therefrom for flushing; said bowl, of water supply means and saliva ejecting means arranged for distributive;overflowof water g} the same thereo verand flushing the bowl.

monito -said means for selectively causing the operation of either of said means and discontinuing'the operation ofthe other; 7

r the operation of the other.

"12. In a dental cuspidor' fixture, tliecoinjhination' with a cuspidor bowl having .a v 7 central waste outlet and a peripherally extending, downwardly inclined waterway arranged for distributive overflow of water therefrom for flushing said bowl, of water supply meansand saliva ejecting means discharging into the upper end of said waterway, and a'contr'ol devicecommon to said means for selectively causing the operat on of either of said means and discontinuing 181A fountain cuspidor bowl having a waterway extending aroundthe same and inclined inthe d rection of extent for producing a spiral flow of water over the bowl to'flush the same.

'- '14:. A fountain cuspidor bowl having its bottom inclined downwardly to a central wasteoutletl and a peripherally extending waterway inclined 1n the ,(llTQCtlOIl of ex tent to conduct water from a source of supplyaround the bowl periplieryand to distribute the same by overflow over the bowl bottom tofiu'sh the same.

. 15. A fountain cuspidor bowl having peripherally extending, -longitudi'nally inclined water carrying means adapted to conduct the water about the bowl and to pro duce an overflow of the water laterally to distribute the same in a film over the bowl bottom; '7 1 l6.- A fountaincuspidor bowlyhaving a longitudinally inclined water conducting channel eatending about its periphery and arranged to cause the overflow bit water laterally. onto the bowl wall for distributing 11A circular fountain cuspidor bowl having a longitudinally inclinedjwater conducting channel of progressively decreasing depth extending about 'tlie'circuinfer 'encethereo't and adapted to cause an overfi ow of water laterally onto the bowl wall for distributing the same thereover and flushing the bowl.

18. A circular fountain cuspidor bowl having its bottom inclined downwardly to.

discharge water through a central waste- I outlet and having a waterconducting chain- .nel of progressively decreasing depth ex tending about the bowl circumference above itsbottoin and adapted to cause an overflow of water laterall throu hout its len th 1 Y e, a o o 5 to. distribute thesa ne' in acontinuous film over the bowl bottom to flush the same.

' '19. Ina dental cuspidor liXture,.the combination with a hollow support, a cuspidor bowl having acentrall waste outlet into the support and a peripherally e tending,- 1ongitudinallyinclinedwaterway adapted to conyduct tl e rwater about the bowl and to produce an overflow thereof laterally to dis:

tribute the same in 'a film over the bowl bottom, an arm on said support, a valve head detachably carried by said arm: and ada e ed for. connection WliLII'ZL SOLIIZCG oi supply ejecting means connected with said head and discharging into said waterway, and a single valve device on saidjheadfor selectively causing operation of either of saidfmeans and discontinuing operation-of the otheiu 20. In a dental cuspidor fixturd the combination with a support, a cuspidor thereon,

a glass holder thereon .at one side of said cuspidor, and a guard on the holder extending partially around and overhang ng the glass'betw'een the lattervand sa d cusp dor of water, water conducting means and saliva to guardsaid glass from contamination by splashing troin said cuspidor to overhang the glass between the latter and'said cuspidor.'

21;. bination with a support, a cuspidor thereon,

a glass holder thereon at one side-of said cuspidor provided with anupwardly extending nozzlepand a guard for the glass supported by said nozzle' between said holder and cuspidor. f

bination with a support, a cuspidor there on, a glass holder thereon at one side oi said cuspidor provided with an upwardly extending nozzle,'and aguard for theglass resting at its bottom. on said holder and sup ported by said nozzle between said holderand cuspidor.

23. In a dental cuspidorlizrture,thelcoinf In dental" cuspidor fixture, the coin bination with a support, a cuspidor theres on, a glass holder thereon atone side of said 7 cnspidor provided with an upwardly' ex tending nozzle, a guard lia vinga bottom j portion formed with a seat adapted to rest on tlie holde'rrim and a top portion curved, to overhang the glass between the l'atter and said cuspidor and bracket means. connecting the nozzle and guard for supporting the latter in position.

bination with a hollow support having an upwardly opening end provided with a trap:

discharging thereinto, a glass holder ,inountsaid holder provided with a 7 shouldered upper end and with a screen, anda gasket clamped and securegil to the joint between ,said holder oand'support, and. having an insaid traps v V v v 7 25 111 a-dental cuspidor fixture, the coinblIlZLlZlOn ofa support, a 'cuspidor thereon,

a valve head on said support provided with agwater supplyconnection, water discharge 24.1n a dental cuspidor fixture, thejcom-j ed on said support, a discharge -spout;for;

wardly projecting portion frictionallyfems bracing said spo'utb'elow' said shouldered end and detachably, securingthe same in po sition with its lower end depending into a 12 5 means connected With said head and dis- A charging into the cuspidor to' flush the same,

saliva ejectingimeans on said head, valve means 1n said head controlling said dischar'ge and ejecting means, and a single manlpulative device for actuating said valve means to selectively cause the operation of either of said discharge and ejecting means and discontinue the operationof the other.

26. In a dental cuspidor fixture, the combination of a support, a cuspidor thereon, a glass holder thereon, a valve head on said support, a nozzle for the glass connected with said head, a nozzle for fiushing the cuspidor connected with said head, saliva ejecting means on said head, valve means controlling said glass nozzle and valve means common to said cuspidor nozzle and ejeotingmeans for selectively causing the operat on of either thereof and discontinumg the operation ofthe other;

' 27. In a'dental cuspidor fixture the comit said supply connection, a second valve means 7 for selectivelycausing the operation of either said 'cuspidor nozzle or ejector in alternation, and a single valve spindle having one movement for actuating said first tuating said second valve means.

ALPHONSE F. PIEPER.

valve means and another movementcfor ace 

